7722720000 has 540 divisors, whose sum is σ = 28887802944. Its totient is φ = 1981440000.

The previous prime is 7722719951. The next prime is 7722720001. The reversal of 7722720000 is 272277.

It is not an unprimeable number, because it can be changed into a prime (7722720001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 44639914 + ... + 44640086.

Almost surely, 2^7722720000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7722720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14443901472).

7722720000 is an abundant number, since it is smaller than the sum of its proper divisors (21165082944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7722720000 is a wasteful number, since it uses less digits than its factorization.

7722720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 7722720000 is about 87879.0077322224. The cubic root of 7722720000 is about 1976.6211119855.

Adding to 7722720000 its reverse (272277), we get a palindrome (7722992277).

The spelling of 7722720000 in words is "seven billion, seven hundred twenty-two million, seven hundred twenty thousand".